Annual average occupancy for premium-segment villas on Phuket's west coast sits at 62-68% based on our estimates (derived from Q4 2024 to Q3 2025 operator data, extrapolated to 2026). That headline figure rarely appears in developer brochures because it masks the extreme spread between high and low season. On Koh Samui the swing is even wider. In this brief, our analysts break down the seasonal pattern month by month and quantify its impact on net owner returns under three management models.
We have tracked daily rates and operator reports since 2019. A consistent pattern emerges: at the peak of high season (December to February), occupancy in well-positioned Phuket districts reaches 82-92%, while at the trough (May to June) it falls to 28-40%. That range directly determines which management model is worth selecting and what net yield an owner can realistically expect.
Quick answer
- High season in Phuket runs November to March: occupancy in prime locations (Bang Tao, Surin, Kamala) reaches 80-92%
- Low season runs May to October: occupancy drops to 25-45% depending on district and property standard
- Average daily rate (ADR) at peak for a two-bedroom villa in Bang Tao is approximately 8,500-12,000 THB as of 2026; in low season 4,000-6,500 THB
- Koh Samui has an inverted micro-seasonality on its eastern coast: Chaweng and Lamai record their occupancy trough in October-November due to the northeast monsoon
- A rental pool with a guaranteed return (typically 5-7% per year) smooths seasonality, but the cost of that guarantee is a net yield roughly 1.5-3 percentage points lower than active management
- Legal short-term letting requires a hotel licence under Thai law; without one the minimum rental period is 30 days
Options and scenarios
High season: November to March in Phuket
Demand in this window comes primarily from European, Russian and Chinese visitors. The western-coast districts of Bang Tao, Layan, Surin and Kamala command the highest rates. Our OTA platform monitoring shows that two-bedroom pool villas in Bang Tao were letting in December 2025 at 10,000-14,000 THB per night. Kamala rates run roughly 10-15% lower, but occupancy is broadly comparable.
Southern districts - Rawai and Nai Harn - attract longer-stay guests sometimes called 'snowbirds'. Occupancy reaches 70-80% there, but at a lower ADR range of 6,000-9,000 THB. The demand profile differs: bookings tend to run two to four weeks, turnover is lower and cleaning costs per stay are reduced.
Low season: May to October in Phuket
Occupancy in Bang Tao falls to 35-45%; in Rawai to 25-35%. Operators typically cut rates by 30-50% relative to the seasonal peak. The critical point is that fixed costs do not move with occupancy. Common area maintenance fees, security, pool upkeep and garden care continue regardless. A villa generating 80,000 THB in monthly revenue during January may produce only 25,000-35,000 THB in June.
Koh Samui: different seasonal mechanics
Koh Samui sits in the Gulf of Thailand and follows a different monsoon cycle. The northeast monsoon (October to December) hits the eastern coastline hardest: Chaweng and Lamai record occupancy of only 20-35% during that window. The western districts of Maenam and Bophut hold up better at 35-50% because the island's topography provides partial shelter.
Koh Samui's high season runs January to April, with a secondary peak in July to August driven by Asian market demand. We estimate average annual villa occupancy on Koh Samui at 55-63%, approximately 5-7 percentage points below Phuket.
Management model and its interaction with seasonality
To illustrate the full picture, we model three management approaches for a two-bedroom villa in Bang Tao with a purchase price of 8,000,000 THB (our estimates, 2026).
Option A - Rental pool with a 6% guaranteed return:
- Guaranteed annual gross income: 480,000 THB
- Owner-side costs (common area fee): approximately 60,000 THB per year
- Net result: approximately 420,000 THB
- Net yield: approximately 5.25%
- Note: the operator earns on the spread between actual rental revenue (which can be 20-40% higher) and the guaranteed figure
Option B - Third-party operator (25-30% commission on gross revenue):
- Estimated gross revenue at 65% occupancy: 680,000 THB per year
- Operator commission at 28%: 190,400 THB
- Cleaning, laundry, minor repairs: approximately 75,000 THB
- OTA platform fees (3-15% host-side): approximately 50,000 THB
- Common area fee: 60,000 THB
- Net result: approximately 304,600 THB
- Net yield: approximately 3.8%
- At 75% occupancy the net result rises to approximately 390,000 THB (4.9%)
Option C - Owner-managed remotely using OTA platforms and a local support team:
- Estimated gross revenue at 60% occupancy: 620,000 THB per year
- OTA commissions: approximately 65,000 THB
- Local team (cleaning, check-in, minor repairs): approximately 90,000 THB
- Common area fee: 60,000 THB
- Utilities, internet, TV: 36,000 THB
- Net result: approximately 369,000 THB
- Net yield: approximately 4.6%
- Legal risk: short-stay letting without a hotel licence is not compliant with Thai law
Comparison table
| Parameter | Rental pool (guaranteed) | Third-party operator | Owner-managed |
|---|---|---|---|
| Typical fee structure | No commission (fixed 5-7% return) | 25-35% of gross revenue | 0% management fee (OTA fees 3-15% only) |
| Estimated annual occupancy | Not applicable (guaranteed) | 60-75% | 50-65% |
| ADR high season (THB) | Not applicable | 9,000-12,000 | 8,000-11,000 |
| ADR low season (THB) | Not applicable | 4,500-6,500 | 4,000-6,000 |
| Gross annual revenue (THB) | 480,000 (guaranteed) | 680,000 (estimated) | 620,000 (estimated) |
| Total annual costs (THB) | 60,000 | 375,400 | 251,000 |
| Net annual result (THB) | 420,000 | 304,600 | 369,000 |
| Net yield | 5.25% | 3.8% | 4.6% |
| Hotel licence required | Yes (operator holds it) | Yes (operator holds it) | Yes (owner must obtain it) |
| Owner pricing control | None | Partial | Full |
| Legal risk | Low | Low to moderate | High without licence |
All figures are based on our estimates for a two-bedroom villa in Bang Tao with a market value of 8,000,000 THB as of 2026. Option C assumes 60% occupancy, which is difficult to sustain without professional revenue management.
Risks and mistakes
Hotel licence as a hard legal constraint. The Thailand Hotel Act (B.E. 2547, amended B.E. 2551) defines a hotel as any premises offering paid accommodation on a nightly basis. Without a licence the minimum legal rental period is 30 days. A condominium building can obtain a hotel licence if it meets fire-safety, sanitation and insurance requirements and operates a reception function. Standalone villas in dispersed residential projects generally cannot qualify. We verify this point for every project we analyse.
Overstating occupancy in return projections. The most common error we observe in buyer calculations is assuming 80%+ annual occupancy. Rates at that level apply only during December to February in the best-located properties. An annual average of 62-68% reflects professionally managed stock with strong review profiles (4.5 or above on OTA platforms).
The hidden cost of a guaranteed return. A rental pool offering 6-7% guaranteed earns its margin on the spread. If actual gross yield in the market runs at 9-10%, the operator retains the difference. After the guarantee period (typically three to five years) expires, the owner faces unsmoothed market occupancy for the first time.
Fixed costs do not disappear in low season. A vacant villa is not a zero-cost villa. Common area fees of 4,000-8,000 THB per month, security, pool maintenance and garden upkeep run independently of occupancy. Under owner-managed arrangements, five empty months can represent 30,000-50,000 THB in fixed charges with no offsetting revenue.
Exchange rate exposure. The THB/USD and THB/EUR rates shifted materially between Q1 2025 and Q1 2026 based on data we monitor. A 5% movement in the exchange rate can shift an investor's home-currency net yield by 0.3-0.5 percentage points, which matters when comparing yields across markets.
Monthly letting as the legal alternative. For properties without a hotel licence, letting periods of 30 days or more remain the only compliant route. Monthly rates for a two-bedroom villa in Bang Tao run 45,000-70,000 THB in high season and 25,000-40,000 THB in low season. Annual gross revenue at full occupancy reaches approximately 420,000-540,000 THB, but realistic occupancy in the monthly-let segment is only 50-60%.
FAQ
When is high season in Phuket and what occupancy levels does it produce?
High season runs November to March. During this window, villa occupancy in Bang Tao, Surin and Kamala reaches 80-92%. The demand sources are primarily European, Russian and Chinese travellers. The peak pricing period is the Christmas-New Year window from approximately 20 December to 10 January.
What does occupancy look like during Phuket's low season?
From May to October occupancy falls to 25-45% depending on location and property standard. Bang Tao and Kamala hold at approximately 35-45%, while Rawai and Nai Harn typically sit at 25-35%. Daily rates drop 30-50% relative to the high-season peak.
How does Koh Samui seasonality differ from Phuket?
Koh Samui sits in the Gulf of Thailand and follows a different monsoon cycle. The northeast monsoon from October to December depresses occupancy on the eastern coast (Chaweng, Lamai) to 20-35%. Western districts such as Maenam and Bophut hold better at 35-50% during that period. Average annual occupancy on Samui is roughly 5-7 percentage points lower than on Phuket.
What commission does a property management operator charge in Phuket?
A standard third-party operator takes 25-35% of gross revenue. On top of that, cleaning and laundry costs for a two-bedroom villa run approximately 75,000 THB per year, and OTA platform fees add another 3-15%. In aggregate, operating costs can absorb 45-55% of gross rental revenue under this model.
Is a hotel licence required for short-term letting in Thailand?
Yes. The Thailand Hotel Act requires a licence for any property offering accommodation on a nightly basis. Without a licence the minimum legal rental period is 30 days. The licence is available to buildings that meet fire-safety, sanitation and insurance standards and operate a reception function. Individual standalone villas generally cannot satisfy these requirements.
What guaranteed return does a Phuket rental pool typically offer?
The standard guarantee is 5-7% of property value per year, offered for a fixed term of three to five years. After that term expires, most arrangements shift to a revenue-sharing model with the operator. Based on our market data, actual gross yields in well-managed properties can exceed the guaranteed figure by 1.5-3 percentage points, meaning the operator retains that margin during the guarantee period.
Which districts offer more stable year-round cash flow?
Bang Tao and Kamala show a relatively even demand distribution across the year and produce more predictable cash flow. Rawai and Nai Harn have more pronounced seasonal troughs but attract longer-stay guests, which reduces per-stay operating costs. On Koh Samui, Bophut and Maenam are less sensitive to the northeast monsoon than Chaweng or Lamai.
What net yield can a villa owner realistically expect in Phuket in 2026?
Based on our estimates, the net yield for a two-bedroom villa in Bang Tao priced at 8,000,000 THB ranges from 3.8% to 5.25% per year depending on management model. A rental pool with a guaranteed return delivers approximately 5.25%; a third-party operator model delivers 3.8-4.9%; owner-managed operations approximately 4.6%, but with meaningfully higher legal risk.
Is it financially viable to let only during high season?
Letting exclusively during high season (five months) can capture 55-65% of potential annual revenue, but fixed costs run for twelve months. Five months of vacancy can cost 30,000-50,000 THB in unavoidable charges. Even at reduced low-season rates, maintaining occupancy of 25-30% in the off-peak window materially improves the annual result.
How does monthly letting compare to short-stay letting financially?
For properties without a hotel licence, monthly letting (30 days minimum) is the only compliant option. High-season monthly rates in Bang Tao for a two-bedroom villa are 45,000-70,000 THB; low-season rates are 25,000-40,000 THB. At realistic occupancy of 50-60%, annual gross revenue reaches approximately 300,000-380,000 THB, which is lower than professionally managed short-stay revenue but comes with significantly reduced legal exposure.
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